Enemy units that don't have any actions left are not greyed out after resuming the battle. I haven't actually seen them ever do attacks after that though. Also, the font of the cards in your hand is often no longer bolded until you start a new map. This is on opera and firefox. before: after:
I dont quite understand what you are saying but if Means you logged out and back in to the game, this always happens - after relogging all greyed out characters become ungreyed but still cannot preform any actions.